   (Subscriptions/create ^Action0 (iop/action* handler)))
 
 (defn ^Observable$Operator operator*
-  "Returns a new implementation of rx.Observable$Operator that calls the given
+  "Experimental, subject to change or deletion.
+
+  Returns a new implementation of rx.Observable$Operator that calls the given
   function with a rx.Subscriber. The function should return a rx.Subscriber.
 
   See:

;################################################################################

(defn ^Subscription subscribe

  ([^Observable o on-next-action]
    (.subscribe o

(declare unsubscribed?)

(defn ^Subscriber subscriber
  "Experimental, subject to change or deletion."
  ([o on-next-action] (subscriber o on-next-action nil nil))
  ([o on-next-action on-error-action] (subscriber o on-next-action on-error-action nil))
  ([^Subscriber o on-next-action on-error-action on-completed-action]
